CN108005230B - Bottom sectional assembly type earthquake-resistant function restorable core tube system - Google Patents
Bottom sectional assembly type earthquake-resistant function restorable core tube system Download PDFInfo
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- CN108005230B CN108005230B CN201711318879.4A CN201711318879A CN108005230B CN 108005230 B CN108005230 B CN 108005230B CN 201711318879 A CN201711318879 A CN 201711318879A CN 108005230 B CN108005230 B CN 108005230B
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 208
- 239000010959 steel Substances 0.000 claims abstract description 208
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 35
- 238000005265 energy consumption Methods 0.000 claims abstract description 20
- 230000006378 damage Effects 0.000 claims abstract description 17
- 230000000694 effects Effects 0.000 claims abstract description 4
- 238000005452 bending Methods 0.000 claims description 14
- 230000035939 shock Effects 0.000 claims description 8
- 238000010008 shearing Methods 0.000 claims description 6
- 238000011084 recovery Methods 0.000 claims description 3
- 239000012141 concentrate Substances 0.000 claims 1
- 230000008439 repair process Effects 0.000 abstract description 9
- 238000013461 design Methods 0.000 abstract description 6
- 239000003351 stiffener Substances 0.000 description 12
- 238000010276 construction Methods 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 6
- 239000004567 concrete Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/34—Extraordinary structures, e.g. with suspended or cantilever parts supported by masts or tower-like structures enclosing elevators or stairs; Features relating to the elastic stability
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/32—Columns; Pillars; Struts of metal
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
Abstract
The invention discloses a bottom section assembly type earthquake-resistant function-recoverable core tube system, which comprises: a first connecting profile steel member; a replaceable steel column assembly provided on the first connecting section steel member and including a plurality of steel columns arranged in parallel; the second connecting steel member is arranged at the top of the replaceable steel column assembly; the replaceable energy-consumption connecting beam is connected with the second connecting profile steel member; the upper reinforced concrete cylinder body is arranged on the second connecting section steel component and works together with the replaceable steel column component in a coordinated manner through the second connecting section steel component so as to resist the side effect of an earthquake; through structural design, the damage of the core tube system is concentrated on the replaceable steel column component at the bottom and the replaceable energy consumption connecting beam. According to the invention, the earthquake-resistant function of the bottom section assembly type core tube system can be recovered, and the post-earthquake repair can be completed by replacing damaged steel columns and replaceable energy-consumption connecting beams.
Description
Technical Field
The invention relates to the technical field of civil structure engineering, in particular to a core tube system with a bottom section assembly type earthquake-resistant function restorable.
Background
In the related art, with the development of economic level, the number of high-rise buildings in cities is increasing. The reinforced concrete frame-core tube wall structure is a multi-story and high-rise structure with wide application, and has the characteristics of high lateral rigidity resistance and high shock resistance. However, after a strong earthquake, the bottom of the core tube member of the reinforced concrete frame-core tube structure is often severely damaged due to the large overturning moment. Since the core tube component is typically a cast-in-place concrete component, the maintenance and replacement difficulties are significant.
Disclosure of Invention
The invention aims to solve the problem of high maintenance difficulty after the bottom of a cast-in-situ reinforced concrete core tube is damaged in the prior art. Therefore, the invention provides the bottom-section-assembled type earthquake-resistant function-recoverable core tube system, which is convenient for quick repair after earthquake and is beneficial to reducing maintenance cost.
According to an embodiment of the invention, a bottom-segment-assembled anti-seismic function-restorable core-tube system includes: a first connecting profile steel member; a replaceable steel column assembly provided on the first connection section steel member, the replaceable steel column assembly including a plurality of steel columns arranged in parallel; the second connecting profile steel member is arranged at the top of the replaceable steel column assembly; the replaceable energy consumption connecting beam is connected with the second connecting profile steel member to connect the head end and the tail end of the second connecting profile steel member; the upper reinforced concrete cylinder body is arranged on the second connecting section steel member and is coordinated with the replaceable steel column assembly through the second connecting section steel member so as to resist the side effect of an earthquake; wherein the replaceable steel column assembly is configured such that the cross-sectional bending load capacity is less than the bending load capacity of the upper reinforced concrete cylinder cross-section to ensure post-earthquake damage is primarily concentrated in the replaceable steel column assembly.
According to the bottom subsection assembly type anti-seismic function restorable core tube system, through structural design, the section bending-resistant bearing capacity of the replaceable steel column assembly is smaller than that of the upper reinforced concrete cylinder body section, and the damage after earthquake can be ensured to be mainly concentrated in the replaceable steel column assembly. After the earthquake occurs, the post-earthquake repair can be completed by replacing the damaged steel column, so that the repair time is shortened easily, and the maintenance cost is reduced.
In addition, the bottom-segment-assembled anti-seismic function-restorable core-tube system according to the above embodiment of the present invention has the following additional technical features:
according to some embodiments of the invention, the replaceable steel column assembly is connected with the first connecting section steel member and the second connecting section steel member through bolts respectively, and the replaceable energy consumption connecting beam is connected with the second connecting section steel member through bolts.
Further, a screw hole is preset at the interface of the first connecting steel member and the replaceable steel column assembly so as to enable the first connecting steel member to be connected with the replaceable steel column assembly through bolts; presetting screw holes at the interface of the second connecting profile steel member and the replaceable steel column assembly so as to enable the second connecting profile steel member to be connected with the replaceable steel column assembly through bolts; screw holes are preset at the interface positions of the adjacent replaceable steel columns so as to realize the bolted connection between the adjacent replaceable steel columns.
According to some embodiments of the invention, a plurality of first stiffening ribs are provided in the plurality of steel columns to ensure that no local buckling of the replaceable steel columns occurs.
According to some embodiments of the invention, a plurality of second stiffening ribs are arranged on the first connecting section steel member and/or the second connecting section steel member, so that the first connecting section steel member and/or the second connecting section steel member is/are prevented from local buckling.
According to some embodiments of the present invention, the adjacent steel columns are bolted together to form a unit capable of withstanding bending moments and shear forces.
According to some embodiments of the invention, longitudinal bars are provided in the upper reinforced concrete cylinder, the longitudinal bars being welded to the second connecting profile steel member in advance.
Further, a shearing-resistant connecting piece is arranged at the contact area of the upper reinforced concrete cylinder body and the second connecting section steel member, so that the section bending moment and shearing force can be effectively and stably transmitted to the second connecting section steel member.
According to some embodiments of the invention, a replaceable energy-consuming connecting beam is arranged at the second connecting profile member, the shear strength of the replaceable energy-consuming connecting beam is smaller than that of the second connecting profile member, the shear strength of the replaceable energy-consuming connecting beam is smaller than the local bearing capacity of the upper reinforced concrete cylinder, the guiding damage is mainly concentrated on the replaceable energy-consuming connecting beam, and the second connecting profile member and the upper reinforced concrete cylinder are protected from damage.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic illustration of a bottom-segment-assembled shock function recoverable core tube system according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along line I-I of FIG. 1;
fig. 3 is a perspective view of a bottom-mounted shock function recoverable core barrel system according to an embodiment of the present invention.
Reference numerals:
the bottom-sub-assembly seismic function restorable core-tube system 100,
the steel column comprises a first connecting steel member 1, a replaceable steel column assembly 2, steel columns 21, a first stiffening rib 211, a transverse stiffening rib 2111, a longitudinal stiffening rib 2112, a second connecting steel member 3, an upper reinforced concrete cylinder 4, bolts 5, a shear connector 6 and a replaceable energy consumption connecting beam 7.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the related art, researches on a single reinforced concrete shear wall are mainly carried out, and patents on a core tube are fewer. Therefore, the development of a core tube system which can control the development of damage and can quickly replace damaged components is of great significance for the framework-core tube structure.
Therefore, the invention provides the bottom-sectional assembly type earthquake-resistant function-recoverable core tube system 100, which is convenient for maintenance after earthquake and is beneficial to reducing maintenance cost.
The bottom-segment-assembled seismic function-restorable core-tube system 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings.
As shown in fig. 1-3, a bottom-segment-assembled shock resistant function restorable core-tube system 100 according to an embodiment of the present invention includes: the steel column comprises a first connecting steel member 1, a replaceable steel column assembly 2, a second connecting steel member 3, a replaceable energy consumption connecting beam 7 and an upper reinforced concrete cylinder 4.
Specifically, the replaceable steel column assembly 2 is provided on the first connecting section steel member 1, and the replaceable steel column assembly 2 may include a plurality of steel columns 21 (the steel columns 21 may be soft steel columns or the like), the plurality of steel columns 21 may be placed vertically (for example, up-down direction shown in fig. 1), the plurality of steel columns 21 may be arranged in parallel, for example, the plurality of steel columns 21 may be arranged in a ring shape or the like in order in the circumferential direction on the same horizontal plane. By making the replaceable steel column assembly 2 consist of a plurality of steel columns 21 which are connected in sequence, the replaceable steel column assembly 2 is convenient to install and disassemble, and is beneficial to repair after earthquake.
The second connecting profile steel member 3 is provided on top of the exchangeable steel column assembly 2. For example, in the example of fig. 1, the second connection section steel member 3 may be provided at the upper end of the replaceable steel column assembly 2, and the second connection section steel member 3 is connected to the replaceable steel column assembly 2.
The replaceable energy consumption connecting beam 7 and the second connecting profile steel member 3 can be connected through bolts. For example, the second connection profile member 3 may be formed substantially in a ring shape, and one side of the second connection profile member 3 may be provided with an opening where the replaceable energy consuming connecting beam 7 may be installed, and the head and tail ends of the second connection profile member 3 may be connected by the replaceable energy consuming connecting beam 7. The replaceable energy dissipating connecting beam 7 is detachably connected (e.g. bolted, etc.) with the second connecting profile steel member 3, thereby facilitating installation and quick replacement after a shock.
The upper reinforced concrete cylinder 4 is arranged on the second connecting section steel member 3, the upper reinforced concrete cylinder 4 is manufactured by adopting a cast-in-situ process, and the upper reinforced concrete cylinder 4 and the plurality of steel columns 21 work cooperatively through the second connecting section steel member 3 to resist the side effect of an earthquake.
Wherein, through adopting suitable cross-section thickness and material intensity, removable steel column subassembly 2 is constructed to whole cross-section bending load capacity and is less than the bending load capacity of upper portion reinforced concrete barrel 4 whole cross-section to guarantee that the damage is concentrated mainly among the removable steel column subassembly 2 after the shake.
Furthermore, the replaceable energy consuming connecting beam 7 may be configured such that the cross-sectional shear load capacity is smaller than the shear load capacity of the second connecting profile steel member 3 to ensure that damage is concentrated in the replaceable energy consuming connecting beam 7.
The first connecting steel member 1 is arranged between the replaceable steel column assembly 2 and the lower foundation, and the second connecting steel member 3 is arranged between the replaceable steel column assembly 2 and the upper reinforced concrete cylinder 4 and is used for guaranteeing the stable connection of the replaceable steel column assembly 2 and other concrete members. And after the earthquake occurs, the upper reinforced concrete cylinder 4 and the connecting profile steel members are not damaged, and the damage is concentrated on the bottom replaceable steel column assembly 2 and the replaceable energy consumption connecting beam 7.
The inside of the bottom-segment-assembled earthquake-resistant function-recoverable core barrel system 100 defines an accommodation space, which can be used for installing an elevator or the like, and one side of the bottom-segment-assembled earthquake-resistant function-recoverable core barrel system 100 can be formed with an opening, at which an elevator door is provided.
By the above construction, the bottom-segment-assembled earthquake-resistant function-recoverable core barrel system 100 according to the embodiment of the present invention can effectively guide the damage of the bottom-segment-assembled earthquake-resistant function-recoverable core barrel system 100 of the embodiment of the present invention to be concentrated in the replaceable steel column assembly 2 and the replaceable energy-consuming connecting beam 7. The replaceable steel column assembly 2 is of a sectional design and consists of a plurality of replaceable steel columns 21, so that the replaceable steel columns can be replaced one by one after an earthquake. After the earthquake occurs, the damaged steel column 21 is only required to be replaced, so that the post-earthquake repair can be completed, the repair time is shortened, and the repair cost is reduced.
According to some embodiments of the invention, a replaceable energy consuming connecting beam 7 is arranged at the second connecting profile steel member 3, and the replaceable energy consuming connecting beam 7 is connected with the second connecting profile steel member 3.
The material strength, the interface form and the section size of the replaceable energy consumption connecting beam 7 are designed, so that the shear strength of the replaceable energy consumption connecting beam is smaller than that of the second connecting steel member 3, and the shear strength of the replaceable energy consumption connecting beam 3 is smaller than the local bearing capacity of the upper reinforced concrete cylinder 4, therefore, the damage after the earthquake can be guided to be mainly concentrated on the replaceable energy consumption connecting beam 7, the second connecting steel member 3 and the upper reinforced concrete cylinder 4 are protected from damage, and the maintenance cost is reduced.
The replaceable energy-consumption connecting beam 7 is connected with the second connecting profile steel member 3 through the bolts 5, so that the damaged replaceable energy-consumption connecting beam 7 can be conveniently replaced after an earthquake occurs, and the quick repair after the earthquake can be realized.
According to some embodiments of the present invention, the replaceable steel column assembly 2 and the replaceable energy consumption connecting beam 7 may be made of low-strength steel, so that the replaceable steel column assembly 2 and the replaceable energy consumption connecting beam 7 at the bottom have better energy consumption performance, and brittle failure such as tearing of steel plates can be avoided.
Referring to fig. 1 to 3, according to some embodiments of the present invention, a replaceable steel column assembly 2 is connected to a first connection section steel member 1 and a second connection section steel member 3, respectively, by bolts 5. In other words, the replaceable steel column assembly 2 is connected to the first connecting section steel member 1 by the bolts 5, and the replaceable steel column assembly 2 is connected to the second connecting section steel member 3 by the bolts 5.
The steel columns 21 are arranged in parallel, and the adjacent steel columns 21 are connected by bolts 5, so that a whole capable of bearing bending moment and shearing force is formed. The replaceable steel column assembly 2 connected with the steel member and the bottom is connected by bolts 5. Due to the adoption of the sectional assembly type design, if the replaceable steel column assembly 2 is damaged during earthquake, the replacing process of the replaceable steel column assembly 2 is as follows: (1) Removing all bolts 5 with the first replaceable steel column 21; (2) replacing the first damaged replaceable steel column 21; (3) All the remaining steel columns 21 are replaced one by one in the same way.
Further, screw holes (not shown in the figure) are preset at the interface of the first connection section steel member 1 and the replaceable steel column assembly 2 so as to enable the first connection section steel member 1 to be connected with the replaceable steel column assembly 2 through bolts; screw holes are preset at the interface of the second connecting steel member 3 and the replaceable steel column assembly 2 so as to enable the second connecting steel member 3 to be connected with the replaceable steel column assembly 2 through bolts. Thereby facilitating the installation and removal of the replaceable steel column assembly 2.
Referring to fig. 1 and 3, according to some embodiments of the present invention, a first stiffener 211 is provided in the replaceable steel column 21, the first stiffener 211 may include a plurality of first stiffeners 211, and the first stiffener 211 may be configured in a straight or T shape, or the like. The first stiffening ribs 211 ensure that no local buckling of the exchangeable steel column 21 occurs.
Further, in conjunction with fig. 1 and 3, the first stiffener 211 may include: transverse stiffeners 2111 and longitudinal stiffeners 2112. The transverse stiffener 2111 extends in a horizontal direction (e.g., left-right direction as shown in fig. 1); the longitudinal stiffener 2112 is connected to the transverse stiffener 2111, and the longitudinal stiffener 2112 may extend in a vertical direction (e.g., up-down direction as shown in fig. 1). The first stiffening ribs 211 are beneficial to improving the rigidity of the replaceable steel column assembly 2 and ensuring that the replaceable steel column 21 does not locally buckle.
According to some embodiments of the present invention, the first connection profile member 1 and/or the second connection profile member 3 are provided with a plurality of second stiffeners, each (or each) of which may be configured in a straight line (or T-shape, etc.). Therefore, a plurality of second stiffening ribs are arranged on the first connecting profile steel member 1 and/or the second connecting profile steel member 3, so that the connecting profile steel member is beneficial to ensuring that the connecting profile steel member is not damaged in earthquake such as yielding, local buckling and the like, and has larger rigidity and strength.
Referring to fig. 1 to 3, according to some embodiments of the present invention, the first and second connection profile members 1 and 3 may have an i-shaped or box-shaped cross-sectional form. The plurality of steel columns 21 may have an i-shaped or box-shaped cross-sectional form. The connecting section steel member and the steel column 21 may take the form of, but not limited to, an i-shaped or box-shaped cross section.
The connecting section steel member adopts steel with higher strength and larger section size, and is provided with a plurality of stiffening ribs. Therefore, the connecting profile steel member has larger rigidity and strength, and the damage of yielding, local buckling and the like in an earthquake is avoided.
According to some embodiments of the present invention, the upper reinforced concrete cylinder 4 is provided therein with longitudinal bars (not shown in the drawings) which are welded to the second connecting profile steel member 3 in advance. The longitudinal steel bars are beneficial to ensuring the connection reliability between the second connecting profile steel member 3 and the upper reinforced concrete cylinder 4.
Further, referring to fig. 1 and 3, the area of the upper reinforced concrete cylinder 4 in contact with the second connection section steel member 3 is provided with a shear connector 6 to ensure that the section bending moment and the shearing force can be effectively and stably transferred to the second connection section steel member 3.
The bottom of the periphery of the core tube system is composed of a plurality of replaceable steel columns 21 which are arranged in parallel. Under the action of the lateral force of the earthquake, the replaceable steel column 21 breaks and absorbs the earthquake energy, so as to avoid the damage of the upper reinforced concrete cylinder 4. Meanwhile, the adjacent replaceable steel columns 21 are connected by bolts 5, so that the steel columns 21 can be conveniently replaced after being damaged. The core tube system can be installed in an assembled mode during construction, and construction progress is quickened.
Because the replaceable steel column assembly 2 adopts a sectional design, the damaged steel columns 21 can be replaced one by one, and other steel columns 21 can bear the vertical load of the whole structure at the same time, so the repairing difficulty is greatly reduced, and the rapid repairing after the structural earthquake is realized.
The invention has clear and simple design concept and convenient manufacture and construction, can solve the problem of quick recovery of the functions of the core tube after earthquake on the premise of not weakening the shear resistance, the bending rigidity and the bearing capacity of the structure, and is suitable for a multi-high-rise frame-core tube structure in an earthquake-prone area.
The construction process of the bottom-mounted type seismic function restorable core-tube system 100 according to an embodiment of the present invention is described in detail below with reference to fig. 1 to 3.
The bottom subsection assembly type earthquake-resistant function-restorable core barrel system 100 according to the embodiment of the invention is characterized in that the upper part of the system is a conventional reinforced concrete core barrel, and the bottom vulnerable area is a steel column core barrel formed by subsection assembly type mild steel columns. The replaceable steel column 21 is connected with the upper reinforced concrete core tube 4 and the lower foundation by adopting the connecting profile steel members 1 and 3. The connecting beam part is provided with a replaceable energy consumption connecting beam 7.
The steel columns 21 are usually prefabricated in a factory, and the bottom connection section steel frame is pre-buried in the foundation. The bolts 5 can be used to connect the factory prefabricated steel columns 21 to the first connecting profile steel member 1 at the bottom during construction. And then a plurality of steel columns 21 are connected by bolts 5, so that the integrity of the bottom steel cylinder is ensured. Subsequently, the upper second connecting profile steel member 3 is placed over the juxtaposed steel columns 21 and is likewise connected with bolts 5, and the exchangeable energy consuming connecting beam 7 is installed in the connecting beam area. And then, constructing a reinforcement cage on the second connecting profile steel member 3, welding longitudinal reinforcement bars of the upper concrete core tube on the connecting profile steel member, and arranging a shearing-resistant connecting piece 6. And finally, building a concrete template on the connecting profile steel member, and casting concrete in situ to manufacture the upper reinforced concrete core tube. This completes the construction process of the bottom-segment-assembled seismic function restorable core-tube system 100 according to an embodiment of the present invention.
Other constructions and operations of the bottom-mounted shock resistant function restorable core-tube system 100 according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (8)
1. A bottom-segmented-assembly-type shock-resistant function-restorable core-tube system, comprising:
a first connecting profile steel member;
a replaceable steel column assembly provided on the first connection section steel member, the replaceable steel column assembly including a plurality of steel columns arranged in parallel;
the second connecting profile steel member is arranged at the top of the replaceable steel column assembly;
the replaceable energy consumption connecting beam is connected with the second connecting profile steel member to connect the head end and the tail end of the second connecting profile steel member;
the upper reinforced concrete cylinder body is arranged on the second connecting section steel member and is coordinated with the replaceable steel column assembly through the second connecting section steel member so as to resist the side effect of an earthquake;
wherein the replaceable steel column assembly is configured to have a cross-sectional bending load capacity less than a bending load capacity of a cross-section of the upper reinforced concrete cylinder to ensure post-earthquake damage is primarily concentrated in the replaceable steel column assembly;
the adjacent steel columns are connected by bolts to form a whole capable of bearing bending moment and shearing force.
2. The bottom-segment-assembled seismic function-resilient core barrel system of claim 1, wherein the replaceable steel column assembly is bolted to the first and second connecting profile members, respectively, and the replaceable energy-dissipating tie beam is bolted to the second connecting profile member.
3. The bottom-segment-assembled seismic function-restorable core-tube system of claim 2, wherein screw holes are preset at an interface of the first connection section steel member and the replaceable steel column assembly to bolt the first connection section steel member and the replaceable steel column assembly; screw holes are preset at the interface of the second connecting profile steel member and the replaceable steel column assembly so that the second connecting profile steel member is connected with the replaceable steel column assembly through bolts.
4. The bottom-mounted seismic function recovery core barrel system of claim 1, wherein a plurality of first stiffening ribs are provided in the plurality of steel columns to ensure that no local buckling of the plurality of steel columns occurs.
5. The bottom-segment-assembled seismic function-recovery core tube system according to claim 1, wherein a plurality of second stiffening ribs are provided on the first and/or second connection profile members to ensure that no local buckling of the first and/or second connection profile members occurs.
6. The bottom-segment-assembled earthquake-resistant function-recoverable core barrel system of claim 1, wherein longitudinal steel bars are provided in the upper reinforced concrete cylinder, the longitudinal steel bars being welded beforehand to the second connecting section steel member.
7. The bottom-assembled earthquake-resistant function-recoverable core barrel system of claim 6, wherein the region of the upper reinforced concrete cylinder in contact with the second connecting section steel member is provided with a shear connector to ensure that cross-sectional bending moment and shear force can be effectively and stably transferred to the second connecting section steel member.
8. The bottom-mounted shock function restorable core-tube system of claim 1, wherein: the second connection profile steel component department sets up removable power consumption and links the roof beam, the shear strength that removable power consumption links the roof beam is less than the shear strength of second connection profile steel component, just the shear strength that removable power consumption links the roof beam is less than the local bearing capacity of upper portion reinforced concrete barrel, guide damage mainly concentrate on removable power consumption links the roof beam, protection second connection profile steel component with upper portion reinforced concrete barrel does not take place the destruction.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711318879.4A CN108005230B (en) | 2017-12-12 | 2017-12-12 | Bottom sectional assembly type earthquake-resistant function restorable core tube system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711318879.4A CN108005230B (en) | 2017-12-12 | 2017-12-12 | Bottom sectional assembly type earthquake-resistant function restorable core tube system |
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| CN108005230A CN108005230A (en) | 2018-05-08 |
| CN108005230B true CN108005230B (en) | 2023-12-15 |
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| CN110725425B (en) * | 2018-07-17 | 2021-05-11 | 深圳大学 | Self-reset energy-consumption swinging shear wall |
| CN109840384B (en) * | 2019-02-20 | 2022-06-17 | 中南建筑设计院股份有限公司 | Design method of sectional reinforced concrete connecting beam with dual functions of bearing and energy consumption |
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| CN104674941A (en) * | 2015-02-10 | 2015-06-03 | 海南大学 | Tubular structure system capable of restoring functions |
| CN106703245A (en) * | 2016-12-08 | 2017-05-24 | 华侨大学 | Reinforced concrete mixed shear wall with replaceable earthquake damaged part |
| CN207829160U (en) * | 2017-12-12 | 2018-09-07 | 深圳大学 | Bottom section assembled anti-knock function can restore Core Walls Structure system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104674941A (en) * | 2015-02-10 | 2015-06-03 | 海南大学 | Tubular structure system capable of restoring functions |
| CN106703245A (en) * | 2016-12-08 | 2017-05-24 | 华侨大学 | Reinforced concrete mixed shear wall with replaceable earthquake damaged part |
| CN207829160U (en) * | 2017-12-12 | 2018-09-07 | 深圳大学 | Bottom section assembled anti-knock function can restore Core Walls Structure system |
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